CIE IGCSE Biology

Topic Questions

IGCSEBiologyCIETopic Questions16. Reproduction16.1 Reproduction in Plants & Humans

16.1 Reproduction in Plants & Humans

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1
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Students were discussing how to remember the difference between two groups of cells, ‘many, minute and motile’ or ‘few, fat and fixed’.

What group of cells were they referring to?

  • Male and female gametes

  • Animal and plant cells

  • Red and white blood cells

  • Xylem and phloem cells

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2
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The statements below are about different hormones in the human body.

  1. Produced by the pancreas.
  2. Causes the voice to deepen at puberty.
  3. Causes an egg to mature in the menstrual cycle.
  4. Promotes the development of stronger muscles.

Which of these statements are correct for testosterone?

  • 1 and 2

  • 2 and 4

  • 3 and 4

  • 4 only

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3
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There are a number of hormones that control fertility in women.

Which one of these maintains the lining during pregnancy?

  • Oestrogen

  • Progesterone

  • FSH

  • Testosterone

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4
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The diagram shows a human sperm cell. The sperm cell has many mitochondria in the mid section.

image-9-

How do the mitochondria help the sperm carry out its function?

  • They carry the genetic information from the male parent.

  • They release energy for movement.

  • They help the sperm enter the egg.

  • They make proteins.

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5
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Which of the following is not an advantage of asexual reproduction?

  • Population numbers can increase rapidly when conditions are favourable.

  • Asexual reproduction is very time and energy efficient.

  • It leads to increased genetic variation within a population.

  • Asexual reproduction enables organisms to exploit suitable environments fast.

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The diagram below shows a flower.

image-2

Which of these processes have taken place?

  pollination fertilisation
A no no
B no yes
C yes yes
D yes no

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2
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An experiment was set up with four test tubes as shown in the diagram below and placed in the dark.

image-4

In which conditions would the seeds germinate first?

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The diagram shows the menstrual cycle. This is a 28 day cycle.

image-5

Which time range in the cycle is the woman most likely to get pregnant?

  • Days 1 - 4

  • Days 7 - 10

  • Days 13 - 16

  • Days 20 - 23

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4
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Germinating seeds were placed in different temperature and light conditions as shown in the table below.

sample temperature / °C light
1 20 absent
2 20 present
3 4 absent
4 4 present

A seedling was removed from each experiment after 7 days.

Which seedling was from sample 2?

image-6

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The graphs below show the levels of two hormones involved in the menstrual cycle and the thickness of the uterus lining.

image-8

Which of these statements is supported by evidence from the graphs?

  • Within 5 days of ovulation, the uterus lining gets thinner.

  • A large increase in progesterone always results in the thickening of the uterus lining.

  • Each time the oestrogen concentration increases the uterus lining gets thicker.

  • At ovulation the thickness of the lining is highest.

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During birth the following processes happen:

  1. Breaking of the amniotic sac
  2. Contraction of the muscles in the uterine wall
  3. Cutting of the umbilical cord

In which order do these processes usually occur?

  • 2 → 3 → 1

  • 2 → 1 → 3

  • 3 → 1 → 2

  • 3 → 2 → 1

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2
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The diagrams show 3 different species of pollen grains as they appear under a microscope. The diagrams are all to the same scale.

image-1

Which pollen grains are involved in insect pollination?

  • 1 and 2

  • 2 and 3

  • 2 only

  • All of them

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3
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The table below shows some advantages and disadvantages of sexual and asexual reproduction.

Which row is correct?

  advantages of sexual reproduction advantage of asexual reproduction
A less population growth only one parent needed
B more energy efficient gametes can be transferred by the environment
C no transfer of gametes does not compete with parent for nutrients
D more genetic variation faster

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4
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HIV is an STI. The following statements are about changes that could occur in the body.

  1. Reduced antibody production
  2. Reduction in red blood cells
  3. Reduction in white blood cells
  4. Reduced volume of blood plasma

Which of these statements would be correct for HIV?

  • 1 and 2

  • 2 and 4

  • 3 and 4

  • 1 and 3

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The diagram shows the female reproductive system.

image-7

After ejaculation, which pathway will the male gamete take to fuse with the egg?

  • Vagina →  cervix   → uterus  → oviduct

  • Ovary   →  oviduct → uterus  → cervix

  • Vagina →  uterus  → cervix   → oviduct

  • Ovary   →  uterus  → cervix  → vagina

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